code: def rf(ctx, x, n):
      xn = ctx.fadd(x, n, prec=2 * ctx.prec)
      return ctx.gammaprod([xn], [x])
  
file_path: catboost/contrib/python/mpmath/py3/mpmath/functions/factorials.py
imports: from ..libmp.backend import xrange
  from .functions import defun, defun_wrapped
label_desc: Use image node_id 4 for calling a global function with example usage: rf(ctx, x, n) and returns: ctx